.flex-shrink{
    display: flex;
    height: 500px;
}
.flex-shrink .item{
    border: 1px solid;
    width: 25%;
}
.flex-shrink div:nth-child(1){
    width: 500px;
    flex-shrink: 0;
}

.flex-shrink div:nth-child(2){
    flex-shrink: 1;
}
.flex-shrink div:nth-child(3){
    flex-shrink: 3;
}
.flex-shrink div:nth-child(4){
    flex-shrink: 4;
}